Search for the Z boson decay to ττμμ in proton-proton collisions at √s= 13 TeVстатьяИсследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 ноября 2024 г.
Аннотация:The first search for the Z boson decay to ττμμ at the CERN LHC is presented, based on data collectedby the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeVand corresponding to an integrated luminosity of 138 fb−1. The data are compatible with the predictedbackground. For the first time, an upper limit at the 95% confidence level of 6.9 times the standard modelexpectation is placed on the ratio of the Z → ττμμ to Z → 4μ branching fractions. Limits are also placedon the six flavor-conserving four-lepton effective-field-theory operators involving two muons and two tauleptons, for the first time testing all such operators.